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The Dual Frequency Meter module provides a way to measure the frequency of an input (monophonic) waveform. The measurement supports zero-crossing (waves that run from -ve to +ve) as well as positive and negative polarity waves (measured at 2.5V and -2.5V respectively).

Like the Dual Voltmeter, there is a selectable sample time (averaging the value over that time) which can be set OFF or between around 50ms and 1 second and there is a freeze button and trigger input.

Due to the internal sample rate in Voltage Modular and the measurement approach used, the module works best with simple waveforms (that don’t cross zero multiple times) and for lower frequencies – although it can measure frequencies up to around 21kHz.

Annotated image of Dual Frequency Meter module with description of controls
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